Mercedes W177 Petrol Fuel Filler Pipe Fuel Tank Neck Line Hose A1774700200

Mercedes W177 Petrol Fuel Filler Pipe Fuel Tank Neck Line Hose from the Lines, hoses and pipes category is an original fuel system component designed for vehicles with a petrol engine. Designed by the vehicle manufacturer, the pipe ensures proper fuel routing from the filler neck to the tank, maintaining tightness and operational safety. It is a practical solution for users who want to restore the factory performance parameters of the fuel system in their Mercedes W177.

Specifications and technical data

• SKU: A1774700200
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1774700200
• Substitutable numbers: A1774700200, A 177 470 02 00
• Fuel type: Petrol
• Category: Hoses, Lines & Pipes

Purpose and function in the fuel system

Mercedes W177 Petrol Fuel Filler Pipe Fuel Tank Neck Line Hose is responsible for the stable and controlled delivery of petrol from the filler cap to the fuel tank. A correctly selected component for this section of the fuel system minimizes the risk of leaks, spills, and refueling problems, which directly impacts the comfort of daily vehicle operation.

The pipe belongs to a group of components that operate under variable temperature conditions and are exposed to contact with fuel and vapors, which is why it is essential to use a component with the appropriate design and materials compliant with the manufacturer's standards. Proper fitment to the W177 body allows for maintaining the correct routing of the line relative to the chassis and other sub-assemblies.

Technical characteristics and compatibility

The presented fuel filler pipe is a component designed for petrol fuel systems, which is important both in terms of chemical resistance and the internal construction of the line. Using a component dedicated to a specific type of fuel limits the risk of material degradation and ensures stable flow parameters during refueling.

As a part from the Lines, hoses and pipes group, the element works with other fuel system lines, tank ventilation, and mounting hardware. Proper fitment with factory mounts in the W177 body facilitates installation and allows for maintaining the original routing of the line, which is important from the point of view of safety and vehicle serviceability.

Condition, origin, and advantages of using a used part

The fuel filler pipe is offered as a used part, which represents a reasonable compromise between repair costs and maintaining the manufacturer's original specifications. Choosing a component sourced from the dismantling of a vehicle of the same brand allows for maintaining the technical consistency of the fuel system and reduces the risk of fitment issues typical of aftermarket parts with universal designs.

Using an original fuel filler line in place of a damaged or corroded element restores the correct geometry of the system, facilitates refueling, and reduces the risk of contaminants entering the area around the filler neck. This is a practical solution for users who want to keep their car in a condition close to factory-original while maintaining reasonable service costs.

Operational safety and service aspects

A correctly selected fuel filler pipe is important not only for refueling comfort but also for safety – a sealed line limits fuel vapor emissions and the risk of leaks in the wheel arch and undercarriage area. Replacing a worn element with an original component from the same model platform allows a mechanic to perform the repair in a predictable manner consistent with the manufacturer's design assumptions.

For workshops and users servicing the vehicle themselves, it is important that the fuel filler pipe belongs to a group of components whose installation does not require interference with the vehicle's electronics, but only proper seating in factory brackets and connections with other fuel system lines.

Related components and technical knowledge expansion

If you are planning a comprehensive repair or upgrade of the fuel system area in your Mercedes and need other components from the same group, such as flexible fuel lines, rigid supply pipes, or auxiliary ventilation hoses, check the available parts in the Mercedes Lines, hoses and pipes category.

If you are interested in a broader context of how modern emission control systems work and the cost-effectiveness of using components from the secondary market, it is worth reading the article EGR: what it is and why it is worth considering used EGR valves, which organizes knowledge on the operation and selection of used components in vehicles with internal combustion engines.